/**
 * @author Roger Wu
 */
/*@cc_on _d=document;try{eval('var document=_d');}catch(e){}@*/
/*@cc_on try{ eval((function (props) { var code = []; for (var i = 0, l = props.length; i < l; i++) { var prop = props[i]; window['_' + prop] = window[prop]; code.push(prop + '=_' + prop); } return 'var ' + code.join(','); })('document self top parent alert setInterval clearInterval setTimeout clearTimeout'.split(' ')));} catch (e) { } @*/